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Direct observation of boat?chair ? chair?boat equilibrium in the 3,7-diazabicyclo[3.3.1]nonane ring

✍ Scribed by Takeuchi, Yoshito; Scheiber, Pal; Takada, Kanako


Book ID
121448563
Publisher
The Royal Society of Chemistry
Year
1980
Tongue
English
Weight
201 KB
Volume
9
Category
Article
ISSN
0022-4936

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πŸ“œ SIMILAR VOLUMES


Boat-chair conformation of 2,4-dioxabicy
✍ J.A. Peters; W.M.M.J. BovΓ©e; P.E.J.Peters-van Cranenburgh; H. van Bekkum πŸ“‚ Article πŸ“… 1979 πŸ› Elsevier Science 🌐 French βš– 224 KB

The conformation of 2,4-dioxabicyclo[3.3.l]nonane was investigated with the use of lH NMR spectroscopy. From the coupling constants, the Nuclear Overhauser Effects and the T1-relaxation times it was concluded that this compound occurs predominantly in the bc conformation.

The chair-boat energy difference in 1,3-
✍ J.E. Anderson; F.G. Riddell; M.J.T. Robinson πŸ“‚ Article πŸ“… 1967 πŸ› Elsevier Science 🌐 French βš– 213 KB

There is continuing interest in the possibility of six membered rings existing in boat conformations, and the energy differences between boat and chair forms are of fundamental importance in conformational.analysis. Recently the enthalpy difference between the boat and chair forms of 1,3-dioxane ha